The central heating and a/c system that I use was giving me a ton of concerns.
The air flow was easily horrible. My home had not been getting the right amount of heating and a/c no matter what I did! So I called the local heat and air conditioning system biz to send out a single of their best and easily certified heating and a/c pros to take a wonderful look at my central heating and cooling machines to see exactly what was happening, and once the heat and air conditioning system supplier sent that certified heating and a/c pro to my home to look at the central heating and a/c system it was found that the HVAC duct was quite dirty and needed what is called a deep HVAC duct cleaning. This was going to cost me a pretty penny although I easily had to get this done. Otherwise my central heating and a/c system will just keep getting worse and then it would eventually break down on me. And I am not just talking about a correct break down, however the kind that would kill it totally to where I would have to invest in a brand up-to-date central heating and a/c system unit. Since I did not want anything like that to happen I went with the deep HVAC duct cleaning. Once the HVAC ducts were clean my air flow was back to normal as it should be. I felt ecstatic I got this done because it improved my quality of life.